If you describe someone as switched-on , you mean that they are aware of the latest developments in a particular area or activity. ( INFORMAL )
I am very impressed with Brian Hanlon, who seems a switched-on sort of guy.
ADJ
If you describe someone as switched-on , you mean that they are aware of the latest developments in a particular area or activity. ( INFORMAL )
I am very impressed with Brian Hanlon, who seems a switched-on sort of guy.
ADJ
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006